Tell us: Which is the ugliest pup?

By CNN Staff

Updated 3:05 PM ET, Sat June 22, 2013

Photos: The world's ugliest dogs11 photos

The world's ugliest dogs – Walle, who is part beagle, part boxer and part basset hound, was crowned the World's Ugliest Dog in 2013. Winners receive a cash prize and trophy at the annual event, which is held in Petaluma, California. Click through to see past winners.

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Photos: The world's ugliest dogs11 photos

The world's ugliest dogs – Mugly, a Chinese crested from the United Kingdom, won the contest in 2012.

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Photos: The world's ugliest dogs11 photos

The world's ugliest dogs – Yoda, a mix of a Chihuahua and a Chinese crested, took the prize as the World's Ugliest Dog in 2011.

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The world's ugliest dogs – The 2010 winner, a Chihuahua named Princess Abby, wanders around the staging area.

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The world's ugliest dogs – Pabst, a boxer mix, shows off his underbite after winning in 2009.

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Photos: The world's ugliest dogs11 photos

The world's ugliest dogs – Gus, a one-eyed, three-legged Chinese crested, took the win in 2008.